Hinge



(No Model!) R. E. NOLLEY.

HINGE.

No. 400,003. Patented Mar. 19, 1889.

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NITED STATES PATENT OFFICE.

RICHMOND E. NOLLEY, OF ATLANTA, GEORGIA.

HINGE.

SPECIFICATION forming part of Letters Patent No. 400,003, dated March19, 1889. Application filed November 27, 1888- Serial No. 291,955. Nomodel.)

To all whom it may concern.-

Be it known that I, RICHMOND E. NoLLEY, a citizen of the United Statesof America, and a resident of Atlanta, in the county of Fulton and Stateof Georgia, have invented a certain new and useful Blind-Hinge; and I dohereby declare that the following is a full, clear, and exactdescription of the invention, such as will enable others skilled in theart to which it appertains to make and use the same, reference being hadto the accompanying drawings, and to letters or figures of referencemarked thereon, which form a part of this specification.

This invention relates to the class of blind- I hinges thatautomatically hold the blinds open, the object being to cheapen andimprove the construction of such hinges, and to cause them to operatemore satisfactorily.

It consists of two leaves loosely pivoted together by a pin in oblongtapering recesses in the knuckles on the said leaves, details of all ofwhich will be hereinafter fully described, and the parts claimed as newpointed out in the claim.

In the accompanying drawings, Figure 1 is a top edge view of the hinge,showing the two leaves. Fig. 2 is a side elevation of the hinge. Fig. 3is a view of the pivoted end of the hinge. Figs. 4 and 5 are edge viewsof the two leaves of the hinge, showing the preferred form of the slots.Fig. (i is a cross-section on line aat, Fig. 2, showing the taperingform of the slot and the position of the pin when the blind is closed.Fig. 7 is a section. on the same line as Fig.6, being central to thepivoting-pin, but with the hinge in the position that it will assumewhen the blind is open. Fig. 8 shows an open blind, and by dotted linesthe posit-ion the knuckle assumes when the blind is open, which has alsobeen shown in detail in Fig. 7. Fig. 9 is a view of the hinge when theblind is closed, the parts having assumed the relative positions shownin Fig. (5 in detail.

The hinge shown in these drawings, and that will be hereinafterdescribed, is known commonly as a "mort-ise-hingethat is, the leaves arelet into the joint-faces of the windmv-frame and the blind-stile.

In these figures like reference-marks indicate corresponding parts inthe several views.

A and B are the two parts of a hinge, the part A having the knuckle aand the part B having the knuckle b. The top part, A, and the bottompart, B, of the hinge are pivoted together by the pin 0, inserted in theoblong tapering recesses a and 1). One side of these tapering recesses aand b is parallel to the axis on which the hinge swings, and theopposite side slopes, as shown in Figs. 6 and 7 It will be observed byreference to Fig. 7 that when the hinge is in the position shown in thatfigure the pin 0 will lean over to the angle of the ends of the recessesoblique to the axis of revolution of the hinge and will hold the blindopen, for the reason that the said pin being, when parallel to the axisof revolution of the hinge, the pivot on which the hinge revolves, itfollows that when the pin is oblique to the axis of revolution of thehinge it cannot form the journal, and will act as a lock to prevent therevolution of the hinge.

In Figs. 4 and 5 is shown a notch in the side of the slot extending inthe direction of and preferably, though not necessarily, decreasing insize toward and finally dying out at the bottom or smaller end of thetapering recess in the knuckle. This is to prevent any possible forcingof the pin into a vertical position by the wind or other force beingapplied to the blind without swinging the lower end of said blind in thedirection that will force the pin to a vertical position. Ordinarily thefriction of the sides of the slots on the pin and the weight of theblind will prevent the forcing of this pin into a, position parallel tothe axis of revolution of the hinge; but if found to be necessary, asbefore stated, these said notches may be used.

It is obvious that this principle is capable of being used in other thanmortise-hinges,- and that I do not confine myself to this specificconstruction of hinge.

, It will be seen that blinds supplied with this hinge do not requirelifting to be released, merely requiring to be pressed overin thedirection that will force the pin 0 into a vertical position to releasethe lock, which obviates all danger of the blind being lifted froin itsplace.

Havingthus described my invention, What I claim as new, and desire tosecure by Letters Patent of the United States, is

In a blind-hinge, the combination, with the pin C, of the hinge-lea vesA B, provided, respectively, with knuckles (t I), having the oblongtapering recesses ct I), wherein said pin is seated, one side of saidrecess being parallel to the axis of thehinge and the opposite sideoblique thereto, whereby when the blind is open the pin will lean overto the sides of the recess oblique to the axis of revolution of thehinge, as and for the purpose specified.

In testimony whereof I hereunto afiix my signature in presence of twoWitnesses.

RICHMOND E. NOLLEY. \Vitnesses:

A. P. W001), A. A. VOOD.

